Use of 'Limited Life Geotextiles' (LLGs) for Basal Reinforcement of Embankments Built on Soft Clay

2.50
Hdl Handle:
http://hdl.handle.net/2436/29543
Title:
Use of 'Limited Life Geotextiles' (LLGs) for Basal Reinforcement of Embankments Built on Soft Clay
Authors:
Sarsby, Robert W.
Abstract:
Polymeric technical fabrics have long working lives and are sometimes used in practical situations where a geosynthetic is only needed to be fully functional for a relatively short period of time, e.g. a separator layer beneath a temporary access road. This article concerns the use of ‘Limited Life Geotextiles’ (LLGs), i.e. high specification geotextiles, which are designed on the basis of having a limited working life, as basal reinforcement for an embankment built on soft clay. A method is given for defining the allowable progressive loss of tensile strength of the foregoing basal LLG as a result of improvement of the shear strength of the foundation soil due to consolidation. It is shown that the derived relation between required reinforcement strength and consolidation time (the Time-Strength-Envelope) can be represented by a simple exponential equation. Vegetable fibres are natural candidates for use in the manufacture of LLGs since they are a renewable resource and their degradation with time is accounted for in the design of the LLG. Combinations of vegetable fibres growing in tropical regions which are capable of satisfying the Time-Strength-Envelopes for several embankment slopes are presented. (Elsevier)
Citation:
Geotextiles and Geomembranes, 25(4/5): 302-310
Publisher:
Amsterdam: Elsevier
Journal:
Geotextiles and Geomembranes
Issue Date:
2007
URI:
http://hdl.handle.net/2436/29543
DOI:
10.1016/j.geotexmem.2007.02.010
Additional Links:
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V3D-4P127DD-1&_user=10&_coverDate=10%2F31%2F2007&_alid=744554179&_rdoc=1&_fmt=high&_orig=search&_cdi=5728&_sort=d&_docanchor=&view=c&_ct=1&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=95221b0b1c72fab267673faebb7c3623
Type:
Article
Language:
en
ISSN:
02661144
Appears in Collections:
Construction and Infrastructure

Full metadata record

DC FieldValue Language
dc.contributor.authorSarsby, Robert W.-
dc.date.accessioned2008-06-04T15:34:37Z-
dc.date.available2008-06-04T15:34:37Z-
dc.date.issued2007-
dc.identifier.citationGeotextiles and Geomembranes, 25(4/5): 302-310en
dc.identifier.issn02661144-
dc.identifier.doi10.1016/j.geotexmem.2007.02.010-
dc.identifier.urihttp://hdl.handle.net/2436/29543-
dc.description.abstractPolymeric technical fabrics have long working lives and are sometimes used in practical situations where a geosynthetic is only needed to be fully functional for a relatively short period of time, e.g. a separator layer beneath a temporary access road. This article concerns the use of ‘Limited Life Geotextiles’ (LLGs), i.e. high specification geotextiles, which are designed on the basis of having a limited working life, as basal reinforcement for an embankment built on soft clay. A method is given for defining the allowable progressive loss of tensile strength of the foregoing basal LLG as a result of improvement of the shear strength of the foundation soil due to consolidation. It is shown that the derived relation between required reinforcement strength and consolidation time (the Time-Strength-Envelope) can be represented by a simple exponential equation. Vegetable fibres are natural candidates for use in the manufacture of LLGs since they are a renewable resource and their degradation with time is accounted for in the design of the LLG. Combinations of vegetable fibres growing in tropical regions which are capable of satisfying the Time-Strength-Envelopes for several embankment slopes are presented. (Elsevier)en
dc.language.isoenen
dc.publisherAmsterdam: Elsevieren
dc.relation.urlhttp://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V3D-4P127DD-1&_user=10&_coverDate=10%2F31%2F2007&_alid=744554179&_rdoc=1&_fmt=high&_orig=search&_cdi=5728&_sort=d&_docanchor=&view=c&_ct=1&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=95221b0b1c72fab267673faebb7c3623en
dc.subjectGeotextilesen
dc.subjectSoil erosionen
dc.subjectLimited life geotextilesen
dc.subjectTensile strengthen
dc.subjectVegetable fibresen
dc.subjectGeosyntheticsen
dc.subjectSoil consolidationen
dc.subjectSoil reinforcementen
dc.subjectRoad constructionen
dc.subjectEmbankment slopesen
dc.subjectTime-strength envelopeen
dc.subjectGeotextiles-
dc.titleUse of 'Limited Life Geotextiles' (LLGs) for Basal Reinforcement of Embankments Built on Soft Clayen
dc.typeArticleen
dc.identifier.journalGeotextiles and Geomembranesen
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